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Tramming Lead1515

Discussion in 'CNC Mills/Routers' started by Tim Percy, Aug 18, 2021.

  1. Tim Percy

    Tim Percy Well-Known
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    Is there a video or document that would walk me through tramming my Lead1515 with the Dewalt611? I'm having a hard time figuring out what to move to get the adjustments.
     
    William Holman likes this.
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Forward/backward tilt: adjust top or bottom X rails in and out a little (Corner brackets has play) or adjust the Z uprights

    Left/right tilt: adjust one side of the same as above lifting/lowering both rails together.
     
    Mike T likes this.
  3. MaxDembo

    MaxDembo New
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    Hi Peter! I'm replying to this thread as I'm having similar issues. My machine X axis is slightly tilted forward (half degree). You mentioned that corner brackets has play: could you explain it a little better how I should proceed? I can't see where I should act. Same thing for the Z uprights.
    Thanks in advance!
     
  4. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    All the components allows a little movement. Loosen slightly, adjust, retighten.

    Make sure Z uprights are perfectly square to the Y rails first.

    Then adjust the X rails to also be square to the Y rails
     
  5. Oun Hasan

    Oun Hasan New
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    hi i have same issue i need the adjustment wheels for tilting the router in Y axis
    i know how to tilt along X axis but how to tilt along Y ?
    [​IMG]
     

    Attached Files:

  6. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Either your Uprights are angled, or the two X rails are not perpendicular to the Y rails. Adjust the uprights or gantry position to correct
     
  7. Oun Hasan

    Oun Hasan New
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    there are three wheels on the gantry to adjust X axis
    but how to adjust Y axis, no idea
     
  8. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    As described above. You don't use wheels, you built the frame a little skew - loosen screws and make it properly square and precise :)
     
  9. Ethan Maloy

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    I understand that I need to adjust the Z axis on mine after taking measurements, but my question remains, what do I have to loosen to free up the Z axis for adjustment?
     
  10. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    See Tramming: A generic guideline
     
  11. Ethan Maloy

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    Thank you for this, I do not know why that has been impossible to find!

    My next problem is that I was able to get the CNC trammed (to the highest degree of accuracy I could with engineers squares, yet my problem remains.

    I ran a basic square engraving with a different bit and did not have any issues with having a flat bottom on the engraving but when I ran the logo again, the same issue occured. It appears that any time the machine raises the Z axis for a plunge, the low point of the plunge changes. Is this a machine set up issue, a software issue or a cut file issue?
     
  12. David the swarfer

    David the swarfer OpenBuilds Team
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    reduce the maxrate and acceleration for the Z axis.
    trying to move the weight of the router up rapidly is what usually cause lost steps in Z.
     
  13. Ethan Maloy

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    Will do, Can you tell me how to make that change? is that a VCarve change or an Openbuilds control software change?

    Also, do you have a recommened speed for this?
     
  14. Misterg

    Misterg Veteran
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    From the photo on your other thread, I'd say it was a backlash / slop problem - I don't know your machine, but check that all the little wheels on all of your axes are properly adjusted, leadscrew couplings tight, etc.
     
    Mark Carew and David the swarfer like this.
  15. David the swarfer

    David the swarfer OpenBuilds Team
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    no, each machine is different. what you have now is possibly too fast (an alternative to reducing speed is to increase current to the motor)
    it is so simple to reduce the speed and acceleration to 75% or 50% of what they are now and run a simple test job that is always my goto first step.
    if this fixes it, you can play with returning the speed to whatever it was and leaving the acceleration lower than it was, and/or you can increase motor current (80% of the sticker value is great)

    you use OpenbuildSCONTROL to change the parameters in the GRBL firmware in the controller
    Remember to save to the controller using the button arrowed in blue.
    upload_2023-11-3_19-20-25.png
     
    Mark Carew likes this.

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